
Recherche avancée
Médias (2)
-
Rennes Emotion Map 2010-11
19 octobre 2011, par
Mis à jour : Juillet 2013
Langue : français
Type : Texte
-
Carte de Schillerkiez
13 mai 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Texte
Autres articles (104)
-
Ajouter des informations spécifiques aux utilisateurs et autres modifications de comportement liées aux auteurs
12 avril 2011, parLa manière la plus simple d’ajouter des informations aux auteurs est d’installer le plugin Inscription3. Il permet également de modifier certains comportements liés aux utilisateurs (référez-vous à sa documentation pour plus d’informations).
Il est également possible d’ajouter des champs aux auteurs en installant les plugins champs extras 2 et Interface pour champs extras. -
Use, discuss, criticize
13 avril 2011, parTalk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
A discussion list is available for all exchanges between users. -
Librairies et logiciels spécifiques aux médias
10 décembre 2010, parPour un fonctionnement correct et optimal, plusieurs choses sont à prendre en considération.
Il est important, après avoir installé apache2, mysql et php5, d’installer d’autres logiciels nécessaires dont les installations sont décrites dans les liens afférants. Un ensemble de librairies multimedias (x264, libtheora, libvpx) utilisées pour l’encodage et le décodage des vidéos et sons afin de supporter le plus grand nombre de fichiers possibles. Cf. : ce tutoriel ; FFMpeg avec le maximum de décodeurs et (...)
Sur d’autres sites (7323)
-
ffmpeg : Need to convert source video to web/phone html5 players. Willing to pay [on hold]
25 juillet 2015, par mariotanenbaumI need somebody to write me commands for converting videos and i’m willing to pay that.
I need to convert most of these : (if ffmpeg doesn’t support any of those, just ignore it)
mov (QuickTime Movie)
mp4 (MPEG-4 Video)
mpe (MPEG Video)
mpeg (MPEG Video)
mpeg4 (MPEG-4 Video)
3g2 (Mobile Video)
3gp (Mobile Video)
3gpp (Mobile Video)
asf (Windows Media Video)
avi (AVI Video)To most of these :
HTML5, Flash : MP4/H.264, High profile
HTML5 : WebM
HTML5 : Ogg
Mobile : MP4/H.264, Baseline profile, 480x360, for wide compatibility
Mobile : MP4/H.264, Main profile, 1280x720, for newer iOS devices (iPhone 4, iPad, Apple TV)
Mobile : 3GP/MPEG4, 320x240 and/or 177x144, for non-smartphones*Nothing which would not work out of box in ffmpeg
Some tweaking about processor usage and quality is ok but not so important.Goal is to get suitable clips for playing in chrome, firefox, ie9, iphone and android.
For now iphone is the most important.IF you have some spare time, feel free to contact me, i would pay somebody just to send me "commands". It doesn’t to be anything "smart" just so that i don’t need to spend so much time trying learn all about ffmpeg.
-
avfilter/f_metadata : rename "string" into "same_str"
11 février 2016, par Tobias Rapp -
How to process video stream ?
27 avril 2016, par sharpenerI would like to ask some experienced multimedia professional how to proceed with following task :
Given URL provides video stream and we would like to get access to decoded frames (byte stream in memory) in managed
Win7+
application (C#
). We don’t want to render/present the frames the standard way. The video format is known but not fixed (might get changed between two successive sessions, but we will know the parameters).So far, I have found there are several methods and I have build following picture in my mind :
ffmpeg
wrapper- Pros
- Self contained (no dependency to windows technologies)
- Powerful
- Cons
- Little more complex to understand
- Lot of different wrapping variants (
FFmpeg.NET
,ffmpeg-sharp
,ffmpeg-shard
,FFmpeg.AutoGen
, ...)
- Pros
DirectShow
wrapper- Pros
- Widely used/supported technology (variaous filters freely available)
- Nice/detailed documentation on
MSDN
- Cons
- Quite old
- Considered obsolete from the point of author’s view (available only for
desktop
model on runtime >= Win8)
- Pros
MediaFoundation
wrapper- Pros
- Theoretical successor of
DirectShow
, so should be available in the future
- Theoretical successor of
- Cons
- Seems to be not as good as
DirectShow
- Not very popular, limited "community" support
- Seems to be not as good as
- Pros
FFmpegInterop
wrapper- Pros
- Microsoft’s open source wrapper alternative
- Cons
- Not available for runtime < Win8
- Pros